Introduction: The biomechanical changes that arise after breast cancer increase the need for new rehabilitation programs. The aim of this study was to evaluate mediumand long-term effects of vibration therapy on pain intensity, range of motion, myoelectric activity, and muscle strength of post-surgical breast cancer women. Methods: This controlled longitudinal clinical study was composed of 14 ...

The blast vibration attenuation will change as the tunnel cut hole is blasted to create a new free surface. To guarantee safe construction and optimize design parameters, it crucial understand impact of surface on attenuation. Previous studies have often only qualitatively evaluated effect vibration, failing quantify these impacts In this paper, by analyzing decay law velocity under different s...

This paper presents a study about the Longley-Rice model and its applicability in urban settings located in tropical areas. For this, the model has been modeled computationally for MatLab platform. The LRM (Longley-Rice Modified) algorithm has been calibrated and validated with reference values for analysis of the radio signal attenuation measured in Belo Horizonte. These data are evaluated for...

The occupational uses with vibratory tools or vehicles provoked health disorders of users. We reviewed narratively our articles of 35 yr studies and their related literatures, and considered the pathophysiology of the hand-arm vibration disorders. Concerning the risk factors of health impairments in workers with vibratory tools, there are two conflicting schools of the researchers: The peripher...

The present paper deals with the analysis and development of noise-reduction transformer that has a filter function for conductive noise transmission. Two types of prototype noise-reduction transformers with two different output voltages are proposed. To determine an optimum design for the noise-reduction transformer, noise attenuation characteristics are discussed based on the experiments and ...

An important environmental aspect of building and facility design is the evaluation of vibration transmitted to the site, through the ground, from external sources. Such external sources may include highway traffic, surface and subsurface railways, and machinery in nearby locations. To properly predict excitation levels at a building due to such sources, one must be able to predict how much vib...

This article aims to popularize the methods for determining vibratory damping ratio, explain various mathematical and physical theorems related establishment of literal expressions. Vibration is an essential parameter reduce dynamic responses structures. The study aimed at its determination necessary safeguard buildings human lives during earthquake. Among main studied in this article, free vib...